Brooke Henderson keeps rolling along at the U.S. Women's Amateur in Glen Cove, N.Y.

The 16-year-old Smiths Falls golfer advanced to Saturday's semifinals at the match play event after defeating Alison Lee, 19, of California 1-up on Friday. Henderon is the secon-ranked amateur in the world, Lee the third-ranked.

Henderson will meet fellow 16-year-old Hannah O'Sullivan of Arizona in one semifinal, while Kristen Gillman, 16, of Texas takes on Andrea Lee, 15, of California. The semifinal quartet is the youngest in championship history.

A 20-foot birdie at No. 17 brought Lee within one of Henderon Friday. But after Lee sent her approach at the 18th off the back of the green, she conceded to Henderson after she lagged her birdie putt close and Lee remained 10 feet away after her chip from the rough.

"That was my first match this week to (reach) 18," said Henderson, who will represent her home country at next month's Women's World Amateur Team Championship in Karuizawa, Japan. "Hopefully the next couple days if I'm up, they finish early, and if I'm down, then we go all the way."

The 2014 U.S. Women's Amateur Championship consists of 36 holes of stroke play followed by six rounds of match play. The championship is scheduled to conclude with a 36-hole final at 8:30 a.m. EDT on Sunday.

All eight quarterfinalists are exempt into the 2015 U.S. Women's Amateur Championship, to be held Aug. 10-16 at Portland (Ore.) Golf Club. The winner and runner-up will receive exemptions into the 2015 U.S. Women's Open Championship, which will be conducted July 9-14 at Lancaster (Pa.) Country Club.

As the four semifinalists are all age-eligible, they will also receive exemptions into the 2015 U.S. Girls' Junior Championship, to be held July 20-25 at Tulsa (Okla.) Country Club.